Divide.
A. x2 + x - 2 + 
B. x2 + x - 2 + 
C. x2 - x - 2 + 
D. x2 + x - 2 + 
Answer: B
Mathematics
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Simplify.(x-9)-7
A. x63
B. 
C. -x63
D. -7x63
Mathematics
Solve the problem.A picture costs $330. The sales tax is $34.65. What is the sales tax rate and what is the total price paid?
A. 1.05%, $364.65 B. 10.5%, $364.65 C. 12.5%, $364.65 D. 11.5%, $364.65
Mathematics
Provide an appropriate response.The probability distribution for the random variable X is: 
What is the expected value of X?
A. 0.62 B. 0.26 C. 0.22 D. 0.50
Mathematics
Use substitution to solve the system of equations.y = -6 - xx - y = 8
A. (0, -6) B. (-1, -6) C. (1, -7) D. Inconsistent; no solutions
Mathematics